What is the Greatest Common Factor of 31428 and 31446?

Greatest common factor (GCF) of 31428 and 31446 is 18.

GCF(31428,31446) = 18

We will now calculate the prime factors of 31428 and 31446, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 31428 and 31446.

How to find the GCF of 31428 and 31446?

We will first find the prime factorization of 31428 and 31446. After we will calculate the factors of 31428 and 31446 and find the biggest common factor number .

Step-1: Prime Factorization of 31428

Prime factors of 31428 are 2, 3, 97. Prime factorization of 31428 in exponential form is:

31428 = 2² × 3⁴ × 97¹

Step-2: Prime Factorization of 31446

Prime factors of 31446 are 2, 3, 1747. Prime factorization of 31446 in exponential form is:

31446 = 2¹ × 3² × 1747¹

Step-3: Factors of 31428

List of positive integer factors of 31428 that divides 31428 without a remainder.

1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 81, 97, 108, 162, 194, 291, 324, 388, 582, 873, 1164, 1746, 2619, 3492, 5238, 7857, 10476, 15714

Step-4: Factors of 31446

List of positive integer factors of 31446 that divides 31428 without a remainder.

1, 2, 3, 6, 9, 18, 1747, 3494, 5241, 10482, 15723

Final Step: Biggest Common Factor Number

We found the factors and prime factorization of 31428 and 31446. The biggest common factor number is the GCF number.
So the greatest common factor 31428 and 31446 is 18.

Also check out the Least Common Multiple of 31428 and 31446